package java.util;

public interface SortedSet<E> extends Set<E> {
	
	public Comparator<? super E> comparator();
	public E first();
	public SortedSet<E> headSet(E toElement);
	public E last();
	public SortedSet<E> subSet(E fromElement, E toElement);
	public SortedSet<E> tailSet(E fromElement);
}
